Spray nozzle devices



Nov. 21, 1961 J. E. PALMER 3,009,655

SPRAY NOZZLE DEVICES Filed Jan. 18, 1960 //1 wen/Zr.-

Jo/m E. Pa/me r 3,009,655 Patented Nov. 21, 1961 3,009,655 SPRAY NOZZLEDEVICES John E. Palmer 1439 17th Ave. SE., Calgary, Ontario, CanadaFiled Jan. 18, 1960, Ser. No. 3,122 Claims. (Cl. 239-547) This inventionrelates to new and useful improvements in spray nozzle devices of thetype which are used on booms of machinery employed in agriculturalspraying operations, and in particular the invention concerns itselfwith certain improvements in the device disclosed in my earlier PatentNo. 2,544,176, issued on March 6, 1951.

In accordance with the teachings of my earlier patent, there is provideda nozzle device having a body which is adapted to be clamped in positionon a pipe or boom without being screwed thereto in the manner ofconventional spraying nozzles. The body of the device carries a sprayingtip and a filter which extends through an apertu-re into the pipe, agasket being provided between the pipe and the body to prevent leakage.

While this form of construction is generally satisfactory, it requires aspraying tip and a filter of special design, so that it is not adaptedfor use with standard, conventional tip and filter units such as areavailable economically on the open market.

It is, therefore, the principal object of the present invention toprovide a spray nozzle device embodying a standard, conventional tip andfilter unit, whereby the same may be economically produced and readilyinstalled on any pipe or boom, and which may be easily adjusted with theuse of one wrench only.

An important feature of the invention resides in the provision ofimproved means for sealing the device against leakage, such means beingin the form of a resiliently compressible bushing which renders theassembly virtually leakproof and is used in place of the simple gasketprovided in my earlier invention.

Another important feature of the present invention resides in animproved arrangement of parts which eliminates the use of lock nuts usedwith conventional nozzle tips and permits adjustments of alignment to bemade by only one wrench in place of two which are required when locknuts are employed.

Another important feature of the invention arises from its use ofstandard, conventional tip and filter units as aforesaid, which unitsare readily available in a large variety of difierent sizes of filteringand spraying orifices, the arrangement of the invention being such thatthe tip and filter units maybe quickly and easily interchanged in theuse of the same device. I

With the above more important objects and features in view and suchother objects and features as may become apparent as this specificationproceeds, the invention will be understood from the followingdescription taken in conjunction with the accompanying drawing, whereinlike characters of reference are used to designate like parts andwherein:

FIGURE 1 is a vertical sectional view of the invention in situ on a pipeor boom;

FIGURE 2 is a side elevational w'ew thereof;

FIGURE 3 is a top plan view showing the lower portion of the clamp bodyper se;

FIGURE 4 is an elevational view of the bushing used in the invention;and

FIGURE 5 is a fragmentary sectional view, similar to that shown inFIGURE 1 but illustrating a slightly modified embodiment of theinvention.

Referring now to the accompanying drawing in detail, particularly toFIGURES 1-4 inclusive, the spray nozzle device is designated generallyby the reference numeral 10, being mounted on a suitable pipe or boom,1,1 having an aperture 12 formed therein. I,

As in my Patent No. 2,544,176, the device embodies in its construction abody 13 which constitutes one portion of a clamp, a complemental portion14 of which is connected to the portion 13 by a hinge pin 15 journalledin a pair of ears 16 on the portion 13. The clampportions 13, 14 arealso provided with apertured ear-s17,

having a clamping bolt 18 extending therethrough, whereby the entiredevice may be securely mounted on the pipe 11 without being screwedthereto.

The clamp body portion 1.3 is formed with a frusto- I v conical socket19 and with an inturned annular rim 20 at the minor, outer end of thesocket, the rim 20 defining an opening 21 which, of course, is smallerthan the minor diameter of the socket. The socket is adapted to receivetherein a frusto-conical bushing 22 formed from suitable resilientlycompressible material such as rubber, neoprene, or the like, theouterend of the bushing abutting the rim 20 as shown, while the innerend of the bushing is provided with a concave surface 23 to sealinglyengage the pipe 11.

The bushing 22 is also formed with an axial bore 24 and with an annulargroove 25 intermediate the ends of the bore, the purpose of which willbe presently explained.

The device is adapted for use with a standard, conventional tip andfilter unit such as is readily available on the open market, but withoutthe usual screw-threaded body and lock nut with which the standard unitsare furnished. As such, the device utilizes the filter 26 and thespraying tip 27 of the standard unit, the filter and tip being securedtogether by a suitable screw 28 and having abutting annular shoulders29, as shown.

The filter and tip are positioned in the bore 24 of the bushing so thatthe abutting shoulders 29 are disposed in the groove 25 and the tip 27projects outwardly through the opening 21 to discharge the spray. Thefilter 26 extends through the aperture 12 into the pipe 11.

When the device is assembled on the pipe as shown and the bolt 18 istightened, the body portion 13 of the clamp will firmly press theconcave surface 23 of the bushing 22 against the pipe 11. Similarly, theshoulders 29 will be snugly held in the groove 25 and the rim 20 Willurge the bushing in snug engagement with the portion of the tip 27embraced thereby, so that as a whole, the resiliently compressiblebushing will prevent any leaks occuring at the connection of the deviceto the pipe. As illustrated, the lower end portion of the filter 26 isalso snugly embraced by the bushing and the cooperating frusto-conicalconfiguration of the bushing and socket 19 will assist the bushing inmaking a leakproof seal upon tightening of the clamp bolt 18. I

The bushing is prevented from rotating in the socke 19 by a pair ofelongated detents 30 which are formed integrally with the major endportion of the bushing at diametrically opposite sides thereof and arereceived in elongated recesses 31 formed at corresponding points in themajor end portion of the socket.

Inasmuch as no lock nuts'are employed, the alignment of the tip 27 maybe effected by using only one wrench, and similarly, the entire devicemay be applied to the pipe by theuse of one Wrench only. The filters 26of standard units are available in a variety of different sizes ofscreen mesh, and similarly, the tips 27 are availablein a variety ofdifferently sized orifices. It will be apparent that the different sizesof filters and tips may be very easily interchanged in the same device,as required, the filter and the tip being readily removable from andinsertable in the bushing 22 by simply spreading the resilient bushingFIGURE illustrates a slightly modified form of the invention wherein thefilter 26a is carried by a stem having an externally screw-threadedportion 32 which threadedly engages the bore 24 of the bushing 22a.Otherwise the arrangement of parts is the same as already described.

While in the foregoing there have been described and shown the preferredembodiments of the invention, various modifications may become apparentto those skilled in the art to which the invention relates. Accordingly,it is not desired to limit the invention to this disclosure, and variousmodifications may be resorted to, such as may lie within the spirit andscope of the appended claims.

What is claimed as new is:

1. In a spray nozzle device, the combination of a body adapted to beclamped to a pipe without being screwed thereto, said body beingprovided with a frusto-conical socket having its minor diameter at itsouter end and also being provided with an inturned annular rim at theouter end of said socket defining an opening smaller than the diameterof the socket, a frusto-conical bushing of resiliently compressiblematerial provided in said socket and having its outer end in sealingengagement with said rim, the inner end of said bushing having a concavesurface adapted for sealing engagement with the stated pipe, saidbushing being provided with an axial bore adapted to register with anaperture formed in the stated pipe and coaxial with said opening of thesocket, said bushing also being provided with an annular grooveintermediate the ends of the bushing, and a standard conventional filterand tip unit sealingly mounted in the bore of said bushing and havingthe tip portion thereof projecting outwardly through said opening, thefilter portion of said unit being adapted to extend into the aperture inthe stated pipe, the tip and filter portions of said unit havingabutting annular shoulders sealingly disposed in said groove.

2. The device as defined in claim 1 wherein said socket is provided atone side thereof with a recess, together with a projecting detentprovided at one side of said bushing and disposed in said recess,whereby to positively prevent rotation of the bushing in the socket.

3. In a spray nozzle device, the combination of a body adapted to beclamped to a pipe without being screwed thereto, said body beingprovided with a frusto-conical socket having its minor diameter at itsouter end and also being provided with an inturned annular rim at saidouter end defining an opening smaller than the minor diameter of thesocket, a frusto-conical bushing of resiliently compressible materialprovided in said socket and having its outer end in sealing engagementwith said rim, the inner end of said bushing having a concave surfaceadapted for sealing engagement with the stated pipe, said bushing beingprovided with an axial bore adapted to register with an aperture formedin the stated pipe and coaxial with said opening of the socket, saidbushing also being provided with an annular groove intermediate the endsof the bushing, 21 standard conventional filter and tip unit sealinglymounted in the bore of said bushing and having the tip portion thereofprojecting outwardly through said opening, the filter portion of saidunit being adapted to extend into the aperture in the stated pipe, thetip and filter portions of said unit having abutting annular shoulderssealingly disposed in said groove, said body being provided a oppositesides of the major end portion of said socket with longitudinallyextending recesses, and elongated projecting detents provided atopposite sides of the major end portion of said bushing and disposed insaid recesses, whereby to positively prevent rotation of the bushing insaid socket.

4. The device as defined in claim 3 wherein said filter and tip unitincludes an externally screw-threaded stem threadedly engaging the boreof said bushing.

5. The device as defined in claim 1 wherein said filter and tip unitincludes an externally screw-threaded stern threadedly engaging the boreof said bushing.

References Cited in the file of this patent UNITED STATES PATENTS2,544,176 Palmer Mar. 6, 1951 2,641,509 Yost June 9, 1953 2,690,355Waters et al. Sept. 28, 1954 2,946,518 Wahlin July 26, 1960 :UNITEDSTATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,00%655November 21 1961 A John E. Palmer- It is hereby certified that errorappears in the above numbered patent requiring correction and that thesaid Letters Patent should read as corrected below.

In the grant line 3 and in the heading to the printedspecification lines3 and 41 for "Calgary Ontario Canada". each occurrence, read Calgary,Alberta Canada Signed and sealed this 8th day of May: 1962,

(SEAL) Attest:

ERNEST w SW DAVID L. LADD Attesting Officer Commissioner of Patents

